Humanae Vitae(Human Life)Paul VI

The transmission of human life is a most serious role in which marriedpeople collaborate freely and responsibly with God the Creator. It has alwaysbeen a source of great joy to them, even though it sometimes entails manydifficulties and hardships. The fulfillment of this duty has always posed problems to the conscience ofmarried people, but the recent course of human society and the concomitantchanges have provoked new questions. The Church cannot ignore these questions,for they concern matters intimately connected with the life and happiness ofhuman beings.